Having a sister makes you happier, study confirms

Sisters: they borrow your clothes without asking, rat you out to your parents and know exactly how to push your buttons until you reach breaking point.

But despite all the grief they cause, turns out there’s one major benefit to having them around: happiness.

According to researchers from De Montfont and Ulster Universities in the UK, having a sister makes you optimistic about life. For their study, they asked 571 people between the ages of 17 and 25 to fill out a questionnaire about their mental health.

The takeaway? The participants who grew up with sisters were way more content than those who didn't.